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HomeHomework Helpresearch-methodsQuasi Experimental

Quasi Experimental

A quasi-experimental design is a research method that evaluates the effect of an intervention or treatment without random assignment to control and experimental groups. This approach often relies on pre-existing groups, making it useful in real-world settings but potentially limiting causal inferences due to the lack of randomization.

intermediate
3 hours
Research Methods
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Overview

Quasi-experimental designs are essential in research when random assignment is not feasible. They allow researchers to evaluate the effects of interventions in real-world settings, making them particularly useful in fields like education and public health. By comparing treatment and control groups, ...

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Key Terms

Quasi-Experimental Design
A research design that lacks random assignment to treatment and control groups.

Example: Studying the effects of a new teaching method in one school without random assignment.

Control Group
A group that does not receive the treatment, used for comparison.

Example: Students who continue with traditional teaching methods while others use a new method.

Treatment Group
The group that receives the intervention or treatment.

Example: Students who are taught using the new teaching method.

Causal Inference
The process of drawing conclusions about causal relationships.

Example: Determining if a new drug improves patient outcomes.

Data Collection
The process of gathering information for analysis.

Example: Conducting surveys to gather student feedback.

Statistical Analysis
The process of applying statistical methods to analyze data.

Example: Using regression analysis to evaluate the impact of an intervention.

Related Topics

Experimental Design
Focuses on the principles and methods of designing experiments with random assignment.
intermediate
Statistical Analysis
Covers various statistical methods used to analyze research data.
intermediate
Research Ethics
Explores the ethical principles guiding research practices.
beginner

Key Concepts

non-random assignmentcontrol grouptreatment groupcausal inference